. There’s no doubt that Crossword Quiz will stretch your brain and make you think out of the box, thus turning you into a crossword master. You’ve probably played crosswords before, but what you need to know is that Crossword Quiz provides you with another level of puzzle experience due to its well-chosen clues and amazing animations. In this game, you can test and improve your critical thinking skills.
In mathematics, how do you call two things that are not equal and cannot be mapped to each other?